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hammer [34]
3 years ago
12

A book result sells for $28 if the book is on sale for 20% off how much the sale

Mathematics
1 answer:
zaharov [31]3 years ago
6 0
So it's 28% so you do 20\28= 15 dollars
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WILL GIVE BRAINLIEST
stira [4]

The air force plane travelled for a total of 6.9 hours.

<u>SOLUTION: </u>

Given, An Air Force plane left Nairobi and flew west at an average speed of 159 mph.  A cargo plane left sometime later flying in the same direction at an average speed of 207 mph.  After flying for 5.3 hours the cargo plane caught up with the Air Force plane.  

We have to find the number of hours the Air Force plane flew before the cargo plane caught up.

Now, we know that, \text { distance travelled }=\text { speed } \times \text { time }

For air force plane \rightarrow \text { distance travelled }=159 \mathrm{x} \text { time taken by air force plane }

\text { For cargo plane } \rightarrow \text { distance travelled }=207 \times 5.3 \text { hours }

Now, when cargo plane caught the air force plane the distance travelled by the planes will be equal.

So, 159 \times \text { time taken by air force plane }=207 \times 5.3

\Rightarrow =\frac{207 \times 5.3}{159}

\Rightarrow =\frac{1097.1}{159}

Time taken by air force plane = 6.9  hrs

6 0
3 years ago
Mika read a 405 page book in 6 hours. how many pages per minute did she read?
Annette [7]

Answer:

1.125 pages per minute

Step-by-step explanation:

Mika read a 405 page book in 6 hours.

6 hours is equivalent to

6 × 60 minutes = 360 minutes

Number of pages read per minute = 405/360

                                                         = 9/8 = 1.125 pages

Mika read 1.125 pages per minute.

5 0
3 years ago
One third plus one half
LekaFEV [45]
<h2><em>Find the LCD of 1/3 and 1/2.</em></h2><h2><em>The LCD is 6.</em></h2><h2><em>1/3 in 6ths is 2/6.</em></h2><h2><em>1/2 in 6ths is 3/6.</em></h2><h2><em>2/6 + 3/6 = 5/6.</em></h2><h2><em>1/3 + 1/2 = 5/6.</em></h2><h2><em>Hope this helps and have a nice day.</em></h2>
6 0
3 years ago
Read 2 more answers
−5 − 5/3 in simplest form
andrezito [222]
5
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15 would be in simplest form
7 0
3 years ago
Scientists are studying hurricanes to determine the number of hurricanes in the past 50 years that have caused greater than $1 m
Nina [5.8K]

Answer:

<u>The correct answer is 1. Hurricanes</u>

Step-by-step explanation:

To successfully perform this study, the population to be analyzed must be the total hurricanes that have happened in the last 50 years. If the population is reduced to only hurricanes that have caused damages of more than US $ 1 Million, we would be skewing the research, leaving many of the dispersion and central tendency analysis invalid. The objective is to obtain conclusions from all hurricanes and not only from a subset of them.

7 0
3 years ago
Read 2 more answers
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